The youngest member of the academy, Jack played for the Irish U18 Club side against Italy, Scotland, England and France in 2013. Elite Development Officer Colm McMahon coached the side and was well positioned to view the scrum-half in action during the year.

He made the move from the Saracens youth programme to join the Munster academy for season 2013/14.

Played with the Munster U19s for the Interprovincial series in September 2013 and played for the Ireland U19s against the Australia Schools team in December 2013 at Ravenhill.

At 18 years of age came off the bench in three of Ireland Under 20s' games of the 2014 Six Nations and made his first start against France.

In 2015 he featured in four of Ireland’s U20 6 Nations games and was also a late call-up for the World Rugby U20 Championship, making an appearance from the bench in the 7th place play-off against Scotland U20s.

Represented Munster at the Limerick World Club 7s in August 2015 where he sustained a shoulder injury only to rupture knee ligaments on his return, keeping him sidelined for the remainder of the season.

Completed the Academy programme in June 2016 and secured a professional contract with London Scottish.